To freeway to freeway to have to do what you do.

it was a traffic jam on the freeway

The noun freeway is not a proper noun. The noun freeway is a common noun, a general word for any freeway anywhere.

A proper noun is the name of a specific person, place, or thing. Examples of proper nouns for the common noun freeway are the Gulf Freeway, Galveston, Texas or the Antelope Valley Freeway in California.

"Autobahn" is a German equivalent of "freeway."

"Autosnelweg" is a Dutch equivalent of "freeway."